Window safety appliance



Sept. 22, 1925.

E. JQ'HNsN 'Innova sA'frsrY .Anuman Filed Aug. 21. 1924 2 Sheets-Sheet 1 @vf-Hf v www@ A Sept. 22, 1925.

4 E. JOHNSON wmnow SAFETY Anuman Filed Aug. 2l. 1924 2 Sheets-Shout 2 gwumlw v' Z Jak/wwf 11, @l [ifm Wig?.

Patented Slept. 2.2, 1925.

PA'lEltl't.

EDVJRD JOHNSON, 0F SEATTLE, li'lSHNtiTN.

"WND'W SAFETY APPLNCE.

Application filed August 2l, 1924i. Serial No. 733,428.

To @ZZ uz/ima t may concern:

Be it known that Enwixnn JOHNsoN, a citizen of the United States, residing at Seattle, in the county of ling and State of llivashington, has invented certain new and useful Improvements in llindow Safety Appliances, oi' which the following is a specification.

This invention relates to guard, designed particularly for use to protect window cleaners against falling' when standing` on-the sills toclean the outer surfaces et the window. n

rlhe invention coniprehcnds a iframe structure which is laterally adjustable to. accommodate windows of different widths, and which is adapted to be clamped against the inner and outer surfaces et the wall adr jacent the window frame, when in use with single windows, and which is also adapted to be clamped with relation to the stiles, or with the stiles on one side and the wall on the other, where the device is used with double or triple windows.

The invention is illustrated in the ac companyingr drawings, in which Figure l is a view in side elevation of the improved guard.

Figure 2 is a front elevation ont the saine.

Figure 3 is a plan showing the same in use with a single window.

Figure 4f is a transverse section through the guard.

Figure 5 is a broken plan showing guard in use with a double window.

Figure G is a similar view, showing the guard in use with a triple window.

Figure 7 is a view in elevation showing the application of the auxiliary abutment to the main abutment as is desired in the use of the guard with double or triple windows.

The guard, which is preferably constructed ot metallic rods et suitable size and strength is made up in two duplicate sections, adapted for adjustable interconnection to Vary the width of the guard at will, and as required. Each section includes an upright l, of appropriate height, with a lateral extension 2 at the upper end, termi- Datingr in an eye 3. The lower end of the upright l is bent into U-form at l and then projected forwardly at 5, with the terminal of the portion 5 threaded to receive a turn buckle 6.

The forward portion of each section'includes a length terminally threaded to rethe ceife the turn buckle t3, the` forward end ot length T being termed into a laterally pro jected loop 8' and then extended laterally at 9 with a teiiminal eye ll). The re )active sections, one et which has l een di cribed, and 'which are in duplicate, are connected by having the respective eyes 3 and l0 oli cach section slidably receiii'e lateral portions 2 and i) of the other section, so that the sections are thus slidably connected togctlier,`and may obviously be adjusted to any desired width within the limits oit the sections.

lt desired tions oit the upright l may he connected by brace bars lll, each terminating in an eye l2 to slidably embrace the other bar ll, thus affording a brace at the lower ends of the upright without interfering with the adjustability oit the structure. I

The U-portions -ilat the lower ends ot' the upright lare bridged by plates 13, having marginal portions la which are coiled. about the respective branches oit the tl-portion, and if desired thc brace bars ll may be anchored in these plates. The upper niargijins ot the plates are termed to provide sleeve bearings l5 in which are rotatably supported the intermediate length 16 of what will be 'termed the abutment lever 17. This lever has a forward length i8 and a rear length 19, both of which are arranged at right angles to the intermediate length 16, and also at right angles to each other. Thus either length 1S or i9 may be turned into a position at right angles to the section 5, in which position such length forms the outer abutment for the clamp of the guard. As the lengths 18 and 19 are spaced apart by the intermediate length y16, this adaptability ot the abutment lever obviously provides an adjustment in the position of the outer clamp abutment, as is advisable in accommodating-` walls ot diiterent thicknesses.

The inner abutment is formed by a block QOcentrally channeled at 2l to cooperate with the loop 8 of each section, this inner main abutment presenting,1 a broad bearing surface 22 to engage the inner wall surface, as will later appear. The upper end of the main abutment 20 is reduced at 23 to receive an auxiliary abutment shown more particularly in Figures 5, 6 and 7. This auxiliary abutment comprises a metal loop 24 formed to more or less accurately tit the reduced,

and as preferred the lower porr portion 23 o? the main abiunaent the auxiliary abutment terminating in an appropriately 'formed foot 25 connected with a loop by bar 26. lf desired the auxiliary abutment7 which is readily removable from the nain abutment when desiredmay be made oi a metallic strip, appropriately bent, as indicated in Figures and (3 to form such abutment.

The terminal of the forward length 18 of the aliui-tinent lever 1T is provided with angle strip 2T having a right angle terminal `28, this angle strip forming an extension of the abutment lever for wall engaging purposes, as will be evident.

In use ot the guard with single windows, as illustrated in Figure 3, the guard extensions are moved laterally to the width permitted by the window, the inner abutments 20, with the auxiliary abutments removed, are brought to bear againstthe inner surface of the wall immediately beyond the window trames. The angle levers 17 are adjusted to provide outer abutments to engage the o'uter surface of the wall beyond the window frame, and the turn buckles 6 are tightened to cause the clamping cooperation of said abutments with the wall necessary to x the guard in position. The uprights l and lateral bars 2 are thus disposed beyond the window sill and of sufficient height to prevent the window cleaner 'from falling outwardly.

In the use of the guard with double or triple windows7 the operation .is the same except that where the guard is designed to engage the stile between the windows, the auxiliary abutment 2a is applied to the upper end of the main'abutment, to permitthe formed end 25 of the auxiliary abutment to bear against the window stile. In use with the intermediate window of the three window frame, both main abutments are provided with auxiliary abut-ments7 as indicated in Figure 6.

`What l claim is l. A window guard comprising an outer upstanding` frame, including side bars and adjustable end bars7 an inner sill engaging Lframe comprising relatively adjustable connected bars, abutment members movably supported at the ends of each of the bars ot the inner sill engaging frame, the side bars being connected to the inner frame bars inwardly of the abutments and being adjustable rto vary the positions of the outer and inner frames relative to each other, the abutments being located wholly beyond the side bars, and levers movably mounted at the juncture of the side bars and outer frame and adapted to be turned into position `to engage the outside of the window frame.

2. A window guard comprising an outer upstanding frame, including side bars and adjustable end bars, an inner sill engaging it'rame comprising relatively adjustable connected bars, abutment members movably supported at the ends of each of the bars of the inner sill engaging frame, the side bars being connected to the inner frame bars inwardly of the abutments and being adjustable to vary the positions of the outer and inner iframes relative to each other, the abutments being located wholly beyond the side bars, and auxiliary abutments adapted to engage the first mentioned abutments in the use of the guard with double windows to thereby extend the abutments to engage the stile between the windows.

In testimony whereoI affix my signature.

EDWARD JOHNSON. 

